Sensitivity Enhancement of the Surface Plasmon Resonance Gas Sensor With Black Phosphorus

Singh, Yadvendra; Raghuwanshi, Sanjeev Kumar

doi:10.1109/lsens.2019.2954052

Cited by 72 publications

(26 citation statements)

References 19 publications

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“…The layer of metal is used to generate the surface plasmons. The metal has poor adsorbability, so few layers of 2-dimensional material are associated with enhancing the biosensors’ performance [ 15 – 19 ]. When an incident light beam propagates through two media interfaces with the different refractive indexes at a particular angle and different dielectric constants, the surface plasmon gets excited [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Tuning and Sensitivity Improvement of Bi-Metallic Structure-Based Surface Plasmon Resonance Biosensor with 2-D $$\upvarepsilon$$-Tin Selenide Nanosheets

Sathya¹,

Karki

Rane³

et al. 2022

Plasmonics

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This manuscript aims to analyze the effect of tin selenide (SnSe) on the sensing application of SPR biosensors. Tin selenide is the 2-dimensional transition metal dichalcogenide material. The proposed multilayer structure has a BK7 prism, a bimetallic layer of Au, tin selenide, and a graphene layer. Tin selenide is used to improve the performance parameters of the biosensor. The nanosheet is placed in between two layers of gold (Au) in the Kretschmann configuration. The proposed configuration has a maximum sensitivity of 214 deg/RIU, 93.81% higher than the conventional sensor. The performance parameters like full width half maximum, detection accuracy, and quality factor have been analyzed. The material is an air-stable 2-D. The proposed sensor is suitable for the analysis of chemical, medical, and biological analytes.

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Section: Introductionmentioning

confidence: 99%

Tuning and Sensitivity Improvement of Bi-Metallic Structure-Based Surface Plasmon Resonance Biosensor with 2-D $$\upvarepsilon$$-Tin Selenide Nanosheets

Sathya¹,

Karki

Rane³

et al. 2022

Plasmonics

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“…The layer of metal is used to absorb the biomolecules or chemical molecules. The metal has poor adsorbability, so few layers of 2dimensional material is associated with enhancing the biosensors' performance [13]- [17]. When an incident light beam propagates through two media interfaces with the different refractive indexes at a particular angle and suitable dielectric constants (typically a metal with high concentration of free electrons and a dielectric medium), the Surface Plasmon gets excited [18].…”

Section: Introductionmentioning

confidence: 99%

Tuning and Sensitivity Improvement of Bi-metallic Structure-based Surface Plasmon Resonance Biosensor with 2-D ξ-Tin Selenide nanosheets

Sathya¹,

Karki

Rane

et al. 2021

Preprint

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This manuscript aims to visualize the effect of tin selenide (SnSe) on the sensing application of the SPR biosensors. Tin selenide is the 2-Dimensional material transition metal dichalcogenide family element. By utilizing the extraordinary properties of the SnSe, high sensitivity and high performance of the biosensor is analyzed by utilizing the extraordinary properties of the SnSe. A unique two-dimensional substantial heterostructure, ${\epsilon }$-tin selenide (SnSe) /graphene layer has been deposited over the metal surface to improve the sensitivity; moreover, the sensitivity is limited to a certain extent. The ${\epsilon }-\text{S}\text{n}\text{S}\text{e}$ nanosheet is placed in between two layers of gold (Au) in the Kretschmann arrangement. The proposed configuration has a maximum sensitivity of 214°/RIU, which is 93.81% higher than the conventional sensor. The performance parameters like FWHM, detection accuracy and quality factor have been analysed. The ${\epsilon }-\text{S}\text{n}\text{S}\text{e}$ material is an air-stable 2-D nanosheet and has application in chemical, medical, and biological sensors.

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“…Hence, the Kretschmann structure-based sensor is a promising method for sensing purposes. The sensitivity, detection accuracy, full width half maximum (FWHM), quality factor, etc., have been improvised using the modified multilayer Kretschmann structure [19]- [21].…”

Section: Introductionmentioning

confidence: 99%

“…The graphene layer improves the macromolecular captivation of the sensor. The BK7 prism is used as a coupling prism, the RI of the prism is given as [21]: (1) where λ is the wavelength of the applied optical signal. The RI of the metal layer (Ag) is expressed using the Drude model, = √1 − ( 2 )/[ 2 ( + )], where = 17.614μm and = 0.14541μm.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Tuning and Sensitivity Improvement of Surface Plasmon Resonance Biosensor employing Heterostructures of Titanium Disilicide and Graphene

Balaji¹

2021

Preprint

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In this work, a surface plasmons resonance-based biosensor is theoretically and mathematically investigated. The proposed sensor is a multilayered structure of the titanium disilicide and graphene along with Ag metal. These layers are stacked over the BK7 prism. The metal, titanium disilicide, and graphene layer thickness are taken as 45 nm, 2 nm, and 1.7 nm, respectively. The titanium disilicide is an air-stable 2-D material. The performance of the biosensor is analyzed using the attenuated total reflection (ATR) method. The proposed configuration has a maximum sensitivity of 183.4°/RIU, 47.45 % higher than the conventional sensor. The designed sensor has wide applications in chemical, medical, and biological analyte sensing.

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Sensitivity Enhancement of the Surface Plasmon Resonance Gas Sensor With Black Phosphorus

Cited by 72 publications

References 19 publications

Tuning and Sensitivity Improvement of Bi-Metallic Structure-Based Surface Plasmon Resonance Biosensor with 2-D $$\upvarepsilon$$-Tin Selenide Nanosheets

Tuning and Sensitivity Improvement of Bi-Metallic Structure-Based Surface Plasmon Resonance Biosensor with 2-D $$\upvarepsilon$$-Tin Selenide Nanosheets

Tuning and Sensitivity Improvement of Bi-metallic Structure-based Surface Plasmon Resonance Biosensor with 2-D ξ-Tin Selenide nanosheets

Theoretical Analysis of Tuning and Sensitivity Improvement of Surface Plasmon Resonance Biosensor employing Heterostructures of Titanium Disilicide and Graphene

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